Hi,
I've seen some topics about 1989 coins Y#53a.1/Y#53a.2, but it didn't help me to understand what's with 1990.
I have two coins:
As I can see, both are the same type, it looks identical except for beads/sticks around border on obverse.
Following the description N#7035 this is Y#53a.1 (I'm talking about 1989), and it makes me think that 1990 coin is Y#53a.1 as well, but the coin of this year with this type doesn't exist. I really confused about these coins. The catalog says that one of two types of 1990 is Y#53a.2, which followed by small letters and small head on reverse. I've never seen small head type with year 1990 (I've never seen Y#53a.3 as well, but I guess it's just kinda rare).
So, could someone explain me what type do I have?

